Drawing-glass.



` Patented June 8, 1915 3 SHEETS-SHEET l.

INVENTGR WITNESSES C. P. BYRNES.

DRAWING GLASS.

APPLICATION FILED IuLYzs. 1905.

Patented June 8, 1915.

3 SHEETS-SHEET 2.

WITNESSES INVENTOR C. P. BYRNES.

DRAWING GLASS.

APPLICATION FILED luLY 26. 1905.

1,141.932. Patented June 8, 1915.

3 SHEETS-SHEET 3.

INVENTOR inattesa. y

CLARENCE P. BYRNES, F SEWICKLEY, PENNSYLVANIA. i

DRAWING Guess. i

Application led July 26, 1905. Serial No. 271,284. i

Be it. known that I. Cmnm'cn P. BYRXES,

' of Sewickley, Alleghenyrounty, Pennsylis al view similar to Fig. 3

vania, have invented a new and useful Improrement in Drawing Glass. of which the following is a full, clear. and exact description, reference being had to the accompanying drawings. forming part of this specication,'in which- Figure l is a sectional side elevation showing one ferm of apparatus for carrying out my invention inthe manufacture of wire glass; Fig. 2 is a sectional front elevation atl-right angles to Fig. l; Fig. 3 is a View similar to Fig. l Showing another and (pre- `fe'rred' larrangement of apparatus; Fig. 4e showin-g .thea plying of wire fabric to a sirigle sheet or plate; Fig. 5 is a detail view showing anpther means foruniting sheets; and'Fig. 6

'1s a cross-sectional view showing the glass lsheets integrally `iomed at their ,edges prior to forcing them against t-he wire fabric; Fig. 7 is a side elevationshowing cam mechanism; and Fig.8 is a vertical section showing a modification.

My1 invention relates to the drawing of glass, and particularly-to the forming of` sheets or plates, and/ the making of wire glass.

The invention consists in drawing asheet or plate of glass from a bath of glass), and

l at the same time applyinga wire structure or y fabric thereto,

during the drawing operation.

It further consists in drawing two or more:

jsheets of glass and combining. therewith combined sheets' or tending lengthwise for` the vthe entire length of the pot.

during drawing.` a wire fabric of greater width lthan' the sheet. i

Itfurther consists in fire-polishing the plates during drawing, and in {othe'r details and steps hereinafter described .and claimed.

In the drawings, referring to Figs. l and 59,2, 2 represents. a pot arranged to contain moltenigl'ass, which may be of elliptical or rectangular forni.f and is provided with a refractory, partition, nozzle l'or well 3 eX- major part of lSpecification of Letters Patent.

In the form Patented June 8, 1915.

-able standards 6. The glass-holding pot is preferably supported in a suitable furnace which may be heated 1n any desirable manner, as by gas Jets 4. The drawlng frame S is preferably provided with two parallel baits 9. '9. which are adapted to enter the glass bath on either side of the central partition. It is also preferably` provided ,with

` central means shown at 10 for securing the upper end of the. wire fabric l thereto. A drawing chamber 11 preferably' surrounds the space abovefthe pot for a considerable -hei ght, in order to prevent too sudden cooling ofthe glass. TNithin the lower part of this drawing chamber I place a pair of pressing rollers 12. l2 which are preferably hollow and provided with hollow trunnions which are. mounted in sliding bearings. These bearings may move within suitable slots 13Min the sides of the chamber, so that the rollers may be moved back during the beginning of the operation. The rollers may be kept at any desired temperature by a heating or cooling fluid circulated through thennby iexible'pipes 12. The rollers may be forced forward and held by cams or any suitable devices. and may be covered with lasbestos or similar material.

In Fig.- T I show a cam having a grooved track acting on bearing lugs on the bars Q3 and arranged to simultaneously force the rollers inwardly against the sheet being drawn. l Y

In beginning the operation of making wire glass the baits are lowered into the bath in the usual manner, and are then drawn upwardlv The glass may be chilled or set at the ,drawing pointby movable water-cooled chilling bars ll, on one or both sides of the sheets., if desirable. After the two glass sheets being drawn have been lifted above the compressing rollers l2 I force in these rollers so as to unite the plastic glasslsheets upon and around the wire fabric. The pressure should be suicient to embed the wirev or unite the plates in the meshes` and make the three parts into-a glass plate with the fabric embedded therein. 1l-he two sheets or 15 give the glass able; toward and'froln each other within' the 'i 50 of sind therethrough plates mayabe drawn' of the thickness,

continues as long as desired, when the lower end may be severed from the bath by shears, by flame, er' in any other'desirable manner. The glass may be gur'ed, or a lpattern or -10 prism shape given thereto on one side if v Mdesiredr by using lanotherfpair of 'rollers l5 aboveAthe compressing rollers y One of these rollers l5 has a figured or patterned surface 'corresponding to that which it is desired to `These rollers are also movn '.chamberL l It will be noticed by reference to Fig. 2 that the glass sheets whichfare drawn are of less width than the width of the wire fabric'.`

'This is preferable since it avoids thev necessity for breaking 'off the side portions of the glass to expose the fabric for securing in the ufacture of thick sheet glass.

draw two sheets of-plates by apparatus simi- 90 sashor frame.` I may, however; draw the 25 glass 'sheets as wide or wider thanvthe wire fabric; 'and I may draw the sheets withintegral.' joining portions at 'the ends as shownin Fig. 6, the sheetsnthen forming the sides of' an 'inclosed article.-

InA usome cases the compressing` rollers may be withdrawn-after they have acted upon the first portion ofthe sheets, as the inclination of the draw 'will pull the two plastic glass sheets together, and tend to, unite them on the wire fabric.A

each other. v v

In order to 'avoid themoving iof the line j of draw from the surface of the bath toward 7,40.. the slotted partition, which' is liable to take place in the' vfirst form, I preferably use separating means; such as\ the rollers 16 shown in Fig. 3,- -betweenthesheets 'llhese rollers form guides whichhold the sheets 4as they are formed .at a certain distance apart froingeach other, the sheets being deflected to I4andy betweenv the compressing rollers l12"? as in the first form. @The rollers -16 may be` hollowI and cooled or .heated fby 4al circulation The compressing rollers and the -separatf ingV rollersmaybe faced 'with asbestos to `prevent injury totheglass, but as they are liable f to ,injure the surface ofthe] sheets 5 5 during compression -and forcing. togretherwA Aupon the fabric, Ieptreferably fire polish-the combined plate duringCC its drawing, and while still. in a plastic' condition. A For .this purpose I showi'the gas burners '17 a row of which or a wide thin burner Amay extend within the drawing chamber 11a on `both a sides of. the plate? A highly polished sheet will/thus be obtained which willa-void the necessity. for grinding and polishing, where t? f-Wigre rlaterlassds desiree.

- plastic, thus making a thick ,n iay then 'be drawn upward and fire polished 95 invention, I preferably employ a ric 4in which thel cross wires are welded .to The sheets ymay be` draw-n together by lmoving the baits toward In Figml I show form of' apparatus where a single plate lor sheet of glass is drawn in the` ordinary'manner and the wire fabric-1s forced in through one face thereof.,

.In this form lower rollers18 Jand 19l are 70 used: 'the' roller 19 being preferably 'eircomferentially grooved or corrugated, sofas/ to force into the plastic plate the'wire fabric't which is drawn from the reel 5b through the slot 2O in the sideY of the 'drawing chamber` ,11b- The upper plain compressing rollers 21, 21 then close the glass over thefabric and smooth the' face ofthe sheet. In this operation 'the fabric is therefore forced into v the plastic p ate as it is drawn, to any desirable distance, and the face of the plate is then rolled and smoothed down. IThisl species, as well as the article produced by Vrny'iriyentio'nf,arel reserved ,for separate applications, not being covered in this applica# 85 tion. I f I The process of 'drawing the two slfeets and uniting them. is also' applicable vfor the man- Thus I may lar to that of Fig.A 3, except that the, slotted partitionin the pot is done away with and the two sheets are.`forced together` while,

plate, which if desired while still plastic.

In forming wire glassaccordin `to my,A

ire-fabthe strand `wires at the crossing points. This. welded fabric will reduce the strain on the 'glass during expansion and conraction of the fabric. andgive less liability Q 'to cracking and 'breaking An integral ex' f' panded sheet metal fabric may also be usedl 1.05

Instead of using rollers to unite the sheets .I may use other means, thusv in Fig. .5 I

show `the yuse ofthin widejetspfgaseous Huid, such as air te force the sheets together Instead of Ad ecting above the guide rolls. v

botlrsheets into a plane intermediate of the two points of drawing, I may deflect one sheet only, this sheet together' with the" I A.

'-glass, hence reducing the liability of airA bubbles, etc., andv ajlarge output may be obtained at low. cost. `If the fire polishing is L `employed"durin'g drawing, this will-'do away 130 Y with they necessity for` grinding and polishplied to' 'the fabric, I intend to cover either a lwelded fabric as above described or an integral metal fabricliaving meshes.v

Many variations may be made in the form of the apparatus, as well asin the process,

` withoutdeparting from my. invention.

tially as-described.y L I I claim l. The method of making wire glass, consisting in continuously withdrawing glass from the upper portion of a molten glass bath. shaping it into sheet yor plate as-it is withdrawn, combining a metal fabric or Astructure with f the successive body portions ofthe sheet at a point above the level'of the bath. and unitingthe same the-reto. substantiallyv as described.

l 2. -Tlie methodA of making wire glass, whichconsists in drawing a sheet'of glass upwardly from a mass `of molten glass andl then embedding'a vmetallic fabric in said drawnsheet, while the'drawing action continues; substantially as described.

3. The method of making glass` sheets. consisting in simultaneouslyv drawing two layers of glass and uniting them together vduring ydrawing and while plastic; substan- *1.Tliemethod herein described which consists in simultaneously. drawing two layfrs of glass on opposite sides of a reinforce and forcing such. layers together and on to the sides of the reinforce; substantially as'V described.

5. The method of making wire glass, consisting in continuously7 withdrawing glass 'ti-obi the upperportion bfv a molten glass bath. shaping it into sheet or plate form as it is withdrawn, and continuously luniting a metal fabric or structurewith the successive portions ofthe lsheet after initial formation :substantially as described. C. The method of uniting metal with ,gia ss. consisting in formingI a. relatively thin glass shape by drawing it directly from the upper portion of a' glassr bath, bringing a metal structure or fabricinto contact with tbc glass shape afterv its initial formation, and embedding the metal structure therein; substantially as described. i

T. The method of making wire glass, consisting in continuously drawing glassfrom the upper portion of a massof molten glass Vand uniting a metal fabrictlieiewith at a I form There the wire"fabric is used process of forming the sheet;I substantially as described. i

S. The method of making wiie glass, which consists in drawing a sheet of glass upwardl'i from ,a mass 'of molten glass, then embedding a metallic fabric in sa-id drawn sheet while it is still plastic. and then /sur- Y,

facing the sheet; substantially as descivibedfv 9. The method of making wire glass, coii-v consisting in continuously drawing glass.l from a glass bath, `uniting a metal fabricv therewith exterior to the bath. and conf tinuously fire-polishing the Same within anV yinclosed chamber; substantially as described.'

11. The method of making wire glass, con,- sisting in continuously l withdraw/ing glass from a molten bath and shaping itaI continuously uniting a metal fabricv or structure therewith at a point removed from the bath, and ieheatng the shaped article; substantially as described. i

12. The method of making wire glass;l consisting in drawing a sheet or plate of glass fromfa glass bath andV uniting therewith vat a point removed from the bath a metal fabric of greater width than theglasssheet or lsisting in drawing a glass plate or slieet,75

from a bath. heating a metal fabric and con-A plate during the successive formation thereof. substantially as described. K v13. The method of making wire glass, consisting in continuouslyr drawing glass from theuppery ortion' of amolten glass batlrand jshaping i finto double sheet form as it is withdrawmand embedding a metal structure between ,the'two layers during the sheetforming operation; substantially as -def' scribed. t g .f

1l. The method of making wire-glass, consisting in drawing two sheet or plates of glass from a bath and embedding'a metal fabric between them during the drawing operation.' substantially as described.

ll5. The method of drawing. -wire glass.; consisting in simultaneously drawing two sheets or plates of glass'upwlardly from a glass bath, drawing a wire fabric between them and pressing the two sheet-s together to embed the fabric; substantially as described..

16. 'Ilie method of drawing wire glass,

consistinglin simultaneously'drawing two l sheets or plates-0f glass upwardly from a glass bath. drawing a wire fabric between iio them. pressing the two sheets together toy ,embed the fabric,-andthen fire-polishing the wire glass during the upward drawing of the structure; substantially as described.

o 17. 'The method of making wire glass, consisting in drawing two sheets orlplates ofv glassn from a J.bath (and embedding between point separate from the bath during the them `at a point removed from the bath" a l wire fabric of greater width than the sheets is. 'rhs method herein described which 5 consists` in'simultaneously drawing tw layers of glass, forcing such layers into contact l with each other and determining the thickness of the compound sheet; substantially 4as described.

consists in simultaneously drawing two layers of glass, forcing said layers into contact with each other, and reducing the compound sheet to auniform predetermined thickness.

20. The method herein described..I which consists in. simultaneously drawing'two layers of glass on opposite sides of a reinforce, forcing such layers together onn to opposite sides of the reinforce and determiningthe 2K0 thickness of the compound sheet.

21. lnapparatus forfmaking vwire glass, mechanism for drawing a continuous glass sheet or plate from the upper portion of a bath of molten glass, and mechanism (arranged-toglinite a metal fabric therewith at .a point exterior to the bath; substantially as.

described.

22. I nlapparatus for 'drawing glassmech anism arranged to draw two sheets simultaneously, and means for uniting the 'sheets near the pointv of drawing, and while,v

19. The method. herein described which they are still plastic; substantially. as def 23. ln apparatus for making wire glass, means for drawing two sheets or plates, means for simultaneously feeding a metal fabric betweenl them, and means for uniting the three layers; substantially as described. 24. In glass drawing apparatus, means for `drawing two sheets, a pair of rollers arranged to act upon the sheets, and means for deiiecting the sheets over the rollers, and uniting them; substantially as described. 25., ln glass drawing apparatus, means for. drawing two sheets, and means for deiiecting at least one sheet toward the other and uniting the two sheets; substantially as described. i

v26. In a machine for drawing sheetlglass, the combination of a receptacle arranged to contain a mass of molten glass, means for drawing a sheet of glass upwardly therefrom,r andfmeans foi` forcing a wire fabric into saidv drawn sheet during the continuance of the drawing operation; substantially as described.

ln-testimony whereof, l have hereunto set my hand. y

^ CLARENCE?. BYRNES. Witnesses: l l

N. M, GRIFFIN, i

4 H. M. CORWIN. a 

